High-permeability concrete sealing waterproofing agent and preparation method thereof

Abstract

The invention provides a high-permeability concrete sealing waterproofing agent. The high-permeability concrete sealing waterproofing agent is prepared from, by weight, 5-10 parts of epoxy resin, 2-4 parts of polyamide, 0.6-1.2 parts of polyoxyethylene aliphatic alcohol ether, 0.8-1.6 parts of hexadecyltrimethoxysilane, 0.4-0.8 part of methyltrihydroxysilane, 1.5-3.0 parts of polypropylene fibers, 3-5 parts of a water reducing agent, 2-5 parts of triethanolamine, 0.9-1.6 parts of sodium abietate, 0.8-1.4 parts of alkyl sodium sulfonate and 40-60 parts of deionized water. The concrete sealing waterproofing agent is high in permeability and good in hydrophobicity, has the excellent corrosion resistance, water resistance and ageing resistance, is poisonless after being solidified and can permeate cracks, holes and defects of various sizes and be solidified to block a leakage channel to achieve the anti-leakage purpose through raw material selecting and reasonable using amount proportioning.

Description

technical field [0001] The invention belongs to the technical field of preparation of concrete waterproofing agent, and in particular relates to a high-permeability concrete sealing and waterproofing agent and a preparation method thereof. Background technique [0002] Waterproof engineering occupies a very important position in construction engineering. In construction engineering practice, quality accidents caused by unreasonable design of waterproof engineering, improper material selection, and rough construction are not uncommon, which can cause roof and joint leakage and paint peeling off; Seriously, it causes underground works to be submerged in water, and even buildings collapse, causing losses to state property and endangering people's lives. Therefore, the waterproofing project must be implemented and guaranteed with high quality. [0003] Waterproofing is an important measure, even a fundamental measure, to improve the durability of cement concrete structures. Th...

AI Technical Summary

Problems solved by technology

Practice has proved that most waterproofing agents can improve the impermeability of concrete. However, in the actual application of the first three methods, there are often phenomena of concrete shrinkage and cracking that cause leakage.

Although the fourth method can avoid the shrinkage and cracking of concrete, due to the large amount of common expansion agent, the water demand of concrete increases a lot, and the requirements for construction technology and maintenance are very strict, so it is easy to produce plastic shrinkage cracks. cause waterproof failure

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